What are the three main weapons of predators?

The three main weapons of predators are sharp teeth, claws and jaws.

Predators are wild animals that hunt and kill other animals (their prey), usually for food. Predators are carnivores and they require the flesh of their prey for survival. Examples of predators include lions, weasels, hawks, wolves, grizzly bears, eagles and sharks. The three main weapons of predators are sharp teeth, claws, and jaws. They use the claws and jaws to capture and subdue their prey. They also use the teeth to grasp, kill, and eat the prey.  

if your own plato the answer is b. the fern transitioned from sporophyte generation to gametophyte generation.